Blocker: There is no API module for this. See https://gerrit.wikimedia.org/r/25838 - either Harry forgot to add it or it was deemed not useful. There is no way to get a language-specific thumb URL as far as I can see.

PDF pages are supported via iiurlparam, as a hint - image language could be supported the same way.

(In reply to comment #2)

PDF pages are supported via iiurlparam, as a hint - image language could be
supported the same way.

It should already be. The implementation of that is generic for all media handlers

http://commons.wikimedia.org/w/api.php?action=query&titles=File:Gerrit%20patchset%2025838%20test.svg&prop=imageinfo&iiprop=url&iiurlwidth=300&iiurlparam=langde-300px

That's super annoying to discover. i.e. impossible to discover. Documentation fail. Bug 1 etc. etc.

It should be possible to look for extra params and just pass them to the iiurlparam parameter. I think. Probably. I'm not totally convinced that the thumb URL will always be exactly the same, but in most cases it will, so let's go with it!

(In reply to comment #4)

http://commons.wikimedia.org/w/api.php?action=query&titles=File:
Gerrit%20patchset%2025838%20test.
svg&prop=imageinfo&iiprop=url&iiurlwidth=300&iiurlparam=langde-300px

That's super annoying to discover. i.e. impossible to discover. Documentation
fail. Bug 1 etc. etc.

Indeed it really is. It was originally a hack to make instant commons work. It is totally and utterly undiscoverable.

It should be possible to look for extra params and just pass them to the
iiurlparam parameter. I think. Probably. I'm not totally convinced that the
thumb URL will always be exactly the same, but in most cases it will, so
let's
go with it!

It should always be the same.

https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/245

See also bug 58920, which quibbles with the desired semantics of 'systemLanguage'.

• Bug 68154 has been marked as a duplicate of this bug. ***

I think this actually works now (with thumbnail guessing, although not with thumbnails requested via the API), and the mixing of the languages is due to bug 62039.

Mass-removing the Multimedia tag from MediaViewer tasks, as this is now being worked on by the Reading department, not Editing's Multimedia team.

This seems to work now, at least for SVGs (and I'm not sure what other usecases we have, given that PDF/DjVu are not supported at all) - the example in the task description is confusing due to T64039: MediaViewer confuses different instances of the same image on the same page but see e.g. https://eu.wikipedia.org/wiki/Azelerazio

It only works in the GuessedThumbnailInfo provider though, ThumbnailInfo is still broken. That's T208564: [Spike 4 hour] [BUG] MediaViewer ignores thumbnail options when using API provider for thumbnails.